> They shut it down quite a few months ago.

Yeah, I looked it up before I posted because my information was fairly old, but I found some conflicting info when I did. Some sites state it was just the developer integration that allowed developers to advertise their own apps (as an update to the story). I'm not sure if Apple still runs an advertising framework or not, and wasn't willing to dive much deeper when the first few sources seemed ambiguous and nothing official seemed to clarify.